Paper-feed device



May 26, 1925. 1,538,977

M. FEYBUSCH ET AL PAPER FEED DEVICE Filed Oct. 17, 1921 2 Sheets-Sheet 1A TTORNEYJ' May 26, 1925.

M. FEYBUSCH ET AL PAPER FEED DEVICE Filed 001;. 17, 1921 2 Sheets-Sheet2 INVENTORS,

Patented May 26, 1925.

UNITED STATES 1,538,977 PATENT OFFICE.

MARTIN FEYBUSCH, OF NEW YORK, N. Y., AND PAUL W. FLEISCHER, OFWEEHAWKEN, NEW JERSEY, ASSIGNORS TO NEW JERSEY MACHINE CORPORATION, OFHOBOKEN, NEW JERSEY, A CORPORATION OF NEW JERSEY. I

PAPER-FEED DEVICE.

Application filed October 17, 1921.

To all whom it may concern:

Be it known that we, MARTIN FEYBUSOH, a citizen of the United States,and resident of the borough of Manhattan, city, county, and

State of New. York, and PAULW. Fnnrsonnu, a citizen of the UnitedStates, and resident of VVeehawken, in the county of Hudson and State ofNew Jersey, have jointly invented certain new and useful Improvements inPaper-Feed Devices, of which the following is a specification.

Our invention relates to devices for feed ing paper and like materials,particularly in the shape of webs or strips, and has been designedespecially with reference to use in conjunction with machines in which astrip of paper or like material isapplied around the body or the coverof a box. The embodi ment of our invention illustrated herein relates tomechanism of the type in which the strip of paper has an intermittentmotion at the portion which is delivered to the box or other article tobe wrapped, but the mecha-' nism for feeding the paper from the mainsupply is in motion continuously, although its action on the paper maybe interrupted temporarily in an automatic manner, soas to avoidfeedingtoo much paper. The 111- vention also provides improved means forinsuring the feeding of the paper strip 1n a flat condition, andapplying proper tension thereto. Other features of the invention willappear from the description followlng hereinafter, and the novelty willbe'defined 35 in the appended claims.

Reference is to be had to the accompanying drawings, in which Fig. 1 isa side elevation of one embodiment of our improved paper-feed device;Fig. 2 is a vertical section substantially on the line 22 of Fig. 1;Fig. 3 is a plan view of the device; Fig. 4 is a verticalsection on line44 of Fig. 2; Fig. 5 is a detail section on line 5 5 of Fig. 4; and Fig.6 is a section on line 6-6 of Fig. 3.

The frame of the machine is illustrated as provided with a support 21for a roll 22 of paper or other material 23 of strip-llke character,said material passing in contact with guides 24 and then with a gummingroll 25 in contact with a transfer roll 26 which delivers to said roll25, paste, mucilage or like material froma tank or trough 27 into whichthe roll 26 dips. The strip 23 Serial No. 508,355.

then passes in contact with guides 28 and 29, which may be stationaryrods, or rolls that' while the drawing indicates a single.

strip of paper or like material at 23, we might employ a compound strip,as is done occasionally in the practice of putting wrapping strips onpaper boxes.

From the guide 29, the strip 23 passes to afeed drum 30, preferablyhaving its peripheral surface roughened, so that' the strip 23' will-bebetter gripped and fed by such surface. The shaft 31 of said drum isjournaled in abracket or other support 32 secured to a pair of standards33 mounted on the frame 20. 011 said drum shaft is secured, to turn inunison with the drum, a ratchet wheel 34, normally in driving engagement with an operating pawl 35 which is fulcruined at 36 on a pulley37 mounted loosely on said shaft 31. The pulley 37 is rotatedcontinuously in the direction indicated by the arrow, by means of a belt38 passing over a pulley 39 mounted to turn with a shaft 40 journaled atthe upper ends of the standards 33 and driven in any suitable manner.For instance, said shaft may also carry rigidly a cone. pulley 41,connected by a belt 42 with a similar, but oppositelytapered cone pulley43 mounted to turn with employed for securing the holder 47 in itsadjusted position. The shaft -44 may be driven as follows: A step pulley49, mounted to turn with said shaft, is connected by alaterally-shiftable belt 50* with a similar pulley 51 on a shaft 52,which also carries a i bevel wheel 53 in mesh with a like wheel 54 on ashaft 55 journaled in the frame 20 and rotated in any suitable manner.

Upon the shaft 40 is mounted loosely a feed roll 56, provided on itsperipheral surface with two helical grooves 57 of opposite pitch, sothat these grooves will diverge as shown, in the direction in which saidroll rotates. In order that the shaft 40 may normally carry the feedroll 56 with it during its rotation, wehave provided a pawl-andratchetconnection between them, consisting for instance of ratchet teeth 58 ona reduced end portion of said shaft, and of a pawl 59 pivoted on theroll 56 at 60 and pressed into engagement with said ratchet teeth by aspring 61. The diverging grooves 57 will tend to smooth out the paperstrip 23 by forcing its edge portions apart in case the' strip isbuckled transversely. In order to properly feed the strip 23, we preferto so proportion the drive of the drum and of the roll 56 that thelinear speed at the periphery of the latter will be greater than thelinear speed of the, periphery of the drum 30, thereby keeping the stripunder tension between the drum 30 and the roll 56,

the well-known type which reciprocate s lengthwise of the table,pulling, the strip 23 forward at the forward stroke (direction ofarrow), but leaving this portion of the strip motionless during thereturn stroke of the feeding device (toward the right in Fig. 1).Inasmuch as feeding devices of this intermittent character arewell-lmown in the art, we have deemed it unnecessary to illustrate thisdevice in detail.

Between the guide 63 and the table 65 is ,placed another transverseguide 66 (rod or roller), which like the guides 28, 29, 62, 63 and thefeed members 30, 56 engages the paper strip 23 on'the ungummed side.Be-v tween the guides 63 and 66, the paper forms a bight engaged by atransverse roller 67 in contact with the gummed side of the strip 23,which gummed side faces upward at this point. In order that the roller67 may not remove any material amount of gum from the paper strip, thisroller is formed with narrow ribs or ridges as shown in Figs. 3 and 6.The roller 67 is mounted on one end of an arm 68 fulcrumed on the frame20 at 69 about a horizontal axis, and the weight of the roller tends topull the strip 23 taut, under normal circumstances. It will beunderstood that in connection with the device for feeding the strip 23over the table 65 we employ a retaining member (at the point 65) whichprevents the strip from being pulled back over said table by the weightof the roller 67. In order that the action of the roller 67 may beregulated, we have shown a weight 70 adjustable toward and from thefulcrum 69, along an arm 71 which is rigid with the arm 68. In theparticular construction shown, the arm 71 extends to both sides of thefulcrum. By putting the weight 70 on the side of the fulcrum opposite tothe roller 67 the weight will act as a counterweight; by transferringthe weight 70 to that portion of the arm 71 which is on the same side ofthe fulcrum 69 as the arm 68 and the roller 67, the weight 70 willincrease the force with which said roller bears downwardly on the paperstrip 23. "In order that the roller 67 may not pull the bight of thestrip 23 down beyond a certain limit, we have provided a stationary stop72 in the path of the arm 71, so that the parts mounted on the fulcrum69 cannot swing down beyond the position indicated by the dotted linesin Fig. 1, and in this position the stop 72 will -take the weight ofsaid swinging parts, so that the roller 67 will no longer pressdownwardly on the strip 23 and will no longer exert a longitudinal pullthereon. In order to insure that the paper strip 23 will be in contactwith the roller 67 along a substantial portion of its periphery, evenwhen said roller is in the raised position indicated by full lines inFig. 1, we have provided the following arrangement: Betweenthe guide 63and the roller 67 the paper strip 23 is engaged, on its ungummed side,by a roller or guide 73which forces the paper toward the left in Fig. 1,relatively to the straight-line position which the strip would takebetween the guide 63 and the roller 67 if this additional guide 73 werenot used, obviously, the paper strip is thus held in contact with alonger are or peripheral portion. of the roller 67 than would be thecase otherwise. The guide 73 is carriedby an arm 74 fulcrumed on the arm68 at 75 and having its lower end connected by alink 76 fulcrumed at 77upon a normally stationary arm or support 78. In order that the normalposition of these parts may be varied, the arm 78 may be made adjustableabout a stationary axis or rod (stud) 79, being secured afteradjustment, by means ofa set screw 80 or otherwise.

In operation, a definite length of the strip time the strip 23 isadvanced over the table 65, the bight of the strip will becomeshallower, thatis to say, the roller 67 will rise somewhat owing to thelongitudinal pull of the strip. During the return movement of theintermittently-acting feed device, the portion of the strip 23 which ison the table 65 will remain stationary, and the weight of the'roller 67,assisted or counteracted by the weight 70, will cause the bight tobecome gradually deeper as'an additional amount of paper is supplied bythe feed drum 30 and the feed roll 56, with which the paper is kept incontact by the stretching action or tension produced'by said roller 67.The speed of the drum 30 and of the roll 56 are preferably soproportioned that the length of paper which they will tend to feedduring acomplete operation of the intermittently-acting feed device(both forward stroke and return stroke together) will be in excess ofthe length of paper required by said device. Owing to this excess feed,the bight will increase in depth during the return or inactive stroke ofthe intermittently acting feed device, until the arm 71 comes againstthe stop 72. As soon as this occurs, the tension of the strip 23 isrelaxed, and it will no longer bear against the feed members 30 and 56with suflicient force to be fed by their rotation, but these memberswill slip under the strip 23', which will thus become temporarilystationary. The feed device will therefore operate properly under allcircumstances. We might so proportion the partsthat the amount which themembers 30 and 56 tend to feed during the time the intermittentlyactingfeed device performs a com lete toand-fro movement, would be exact yequal to the amount by which the paper is fed by the saidintermittently-acting feed device during its forward or active stroke;in each case the device illustrated will Worksatisfactorily, but thebest operation will be obtained with, the feed proportions firstexplained.

The purpose of the loose connection between the feed members 30, 56 andthe rotary parts driving them, is to enable the paper strip 23 to bereadily threaded into position when starting the operation. Inasmuch asthe said strip is in contact with the periphery of the drum 30 and ofthe roll 56 (and particularly the former) along a considerable distanceor arc, the friction opposed to sliding or slipping the paper over saidmembers 30, 56 would be very considerable if said members could rotateonly in unison with their respective driving mechanisms. By the loosearrangement described, however, the members 30 and 56 are enabled toturn freely, and independently of their driving mechanisms, as the paperstrip 23 is threaded over them toward the intermittently acting feeddevice. In the case of the feed roll 56, which engages the paper stripalong a much smaller are thanthe drum 30, such loose connection is notso lmpprtant as in the case of said drum.

hile we have stated that we prefer to operate the feed roll 56 in such amanner cations may be made without departing.

from the natureof our invention as set forth in the appended claims.

The guides 28, 29, 62, 63, preferably made with collars, adjustable todifferent distances from each other and adapted to engage the elges ofthe strip 23, as shown in Figs. 2 and 3.. This is of especial importance.in connection with the guide 73, engaging the strip 23 adjacent to thetension member or roller 67, since no edge guides are provided on thelatter.

We claim:

1. In a device of the class described, a frictional feed member movingcontinuously in one direction, intermittently feeding mechanism to whichsaid member delivers the material fed, a movable tension device engagingthe material between said member and said intermittently feedingmechanism to normally pull said material into feeding engagement-withsaid member, said tension device comprising a pivotally mounted leverhaving a roller for engaging said material mounted thereon at asubstantial distance from the pivotal point of said lever, and a counterbalancing weight connected with said lever and a stop to arrest said.tension device so as to discontinue the feeding engagement of the.material with said frictional feed member.

2. In a device of the class described, a frictional feed member movingcontinuously in one direction, intermittently feeding mechanism towhichsaid member delivers the material fed, a movable tension devicehearing by its weight on the portion of the material between said memberand said intermittently feeding mechanism to normally pull said materialinto feeding engagement with said member, said tension device comprisinga pivotally mounted lever having means mounted. thereon at a substantialdistance from the pivotal point of said lever for engaging saidmaterial, and" a counterbalancing weight adjustably mounted upon saidlever and a stop located within the path of movement of said lever toarrest said tension device in a definite position so as to discontinuethe feeding engagement of the material with said frictional feed member.

3. In a paper feeding device, a rotary 73, and 66 a,

drum of large diameter, means to rotate I fed about a portion of theperiphery of said drum, an intermittently feeding mechanism to whichsaid drum delivers the paper, a

. gravity actuated pivoted lever having means for engaging the paperbetween said drum and intermittently feeding mechanism to place saidpaper under tension and hold it in frictional engagement with said drum,and a stop located in the path of movement of said arm whereby thetension upon said paper will be released when said arm engages saidstop.

4. In a device of the character described, a freely rotatable papersupply roll, an intermittently feeding mechanism, means to train aconsiderable length of paper between said intermittently feedingmechanism and said supply roll, and to feed it intermittently to saidmechanism, said means comprising a rotary drum oflarge diameter, guidingrolls for training said paper about a portion of the periphery of saiddrum, and a gravity actuated pivoted lever having means for engaging thepaper between said mechanismand drum to place said paper under tensionand cause it'to be held in frlctional engagement with said drum, and astop located in the path of movement of said lever to cause the tensionupon the paper to be released and interrupt the frictional engagementthereof with said drum when a predetermined length of said paper extendsbetween said drum and feeding mechanism.

5. In a device of the class described, a feed member moving continuouslyin the same direction, intermittently feeding mechanism to which saidmember delivers the material fed, a Support pivoted on a stationaryfulcrum, a tension member carried by said support and engaging saidmaterial between said feed member and said intermittently feedingmechanism, an arm pivoted to said swinging support, a link pivoted on astationary fulcrum and connected pivotally with said arm at a distancefrom the pivot of the arm, and a guide forsuch material, carried by thesaid arm and adapted to engage said material between the ten sion memberand said feed member.

In testimony whereof we havesigned this specification.

MARTIN FEYBUSCH. PAUL W. FLEISCHER.

